Hi, I am having difficulty seeing this. I had lunch at 11:30, then when I came back to work I noticed flashing lights in the center of my vision making it difficult to see my computer screen. There is a large area of flashing lights, and they are still there when I close my eyes. It actually seems to have moved to the upper right side of my vision. I am 56 year old female, no health issues, and work on computer all day. Thank you.